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[2014-03-17 10:41 UTC] mblancha at free dot fr

Description:
------------
When mysqlnd is compiled with compression support (MYSQLND_COMPRESSION_WANTED), there is no explicit dependency to zlib in its build configuration.
So, in the case mysqlnd is built statically, with no link to zlib in any other static part in the build, there is a link edition failure at build time:
In function `php_mysqlnd_net_encode_pub':
mysqlnd_net.c:(.text+0x174e): undefined reference to `compress'
ext/mysqlnd/.libs/mysqlnd_net.o: In function `php_mysqlnd_net_decode_pub':
mysqlnd_net.c:(.text+0x179b): undefined reference to `uncompress'
Here is an example of configure that leads to the error above:
./configure --prefix=/usr \
--sysconfdir=/etc/php \
--mandir=/usr/share/man \
--localstatedir=/var \
--with-config-file-path=/etc/php \
--disable-static \
--disable-ipv6 \
--disable-cgi \
--enable-fpm \
--disable-all \
--with-mysql=shared \
--with-mysqli=shared \
--enable-mysqlnd \
--with-zlib=shared \
--with-zlib-dir=/usr
Or, harder to diagnose, if mysqlnd is built as a module, compilation is fine but there is a load failure of mysqlnd.so:
PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/mysqlnd.so' - /usr/lib/php/extensions/mysqlnd.so: undefined symbol: compress in Unknown on line 0